Across
- 4. the least reactive family on the periodic table
- 5. the symbol in a chemical equation
- 7. the middle family on the periodic table
- 9. an equation with not equal number of atoms
- 10. chemicals after a reaction
Down
- 1. the most reactive family on the periodic table
- 2. matter can not be destroyed
- 3. the building blocks of matter
- 6. chemicals before a reaction
- 8. equation with an equal number of atoms